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VashaNatasha [74]
3 years ago
15

How many ways can 7 books be arranged on a shelf 5 at a time?

Mathematics
1 answer:
aliya0001 [1]3 years ago
5 0
Symbolically, write this:

   C
7     5.  Know how to evaluate that?


C stands for "combination."
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A rectangle has an area of 90 square centimeters and a height of 12.5 centimeters. What is the length of the base?
Sergio [31]

Answer:

A. 7.2 centimeters

Step-by-step explanation:

The length of the base is 7.2 centimeters. The area of a rectangle is length*width

The length is unknown but the area is known. To find the length, all we have to do is divide the area from the height.

The working is as follows :

Area = 90 cm²

Height = 12.5 cm

Length = ?

<em>Length</em><em> </em><em>=</em><em> </em><em>Area</em><em> </em><em>÷</em><em> </em><em>Height</em>

<em>=</em><em> </em><em>90</em><em> </em><em>÷</em><em> </em><em>12</em><em>.</em><em>5</em>

<em>=</em><em> </em><em>7.2cm</em>

4 0
3 years ago
Which expression has a solution of 27, if r = 3? 8 r 6 r 9 r 7 r
ikadub [295]

Answer:

8r.

Step-by-step explanation:

If we substitute 3 into all of these equations, we get

8(3) which equals 24

6(3) which equals 18

9(3) which equals 27

7(3) which equals 21

8r is the one that equals 24 when 3 is substituted.

4 0
3 years ago
The owner of a large manufacturing plant pays the base rate of $11.24 per $100 in wages paid for workers’ compensation insurance
Pepsi [2]

Answer:

Answer is B

Step-by-step explanation:

5 0
3 years ago
You roll a standard number cube. Find p(number greater than 2)
Anna35 [415]
A number cube contains the numbers 1-6. Without counting the numbers that are less than two, you will get 3, 4, 5, and 6.
7 0
3 years ago
Write an equation in point-slow form for the line through the given point with the given slope.
timofeeve [1]
It's a because the form is y-y1=m(x-x1) and of you put the given information in it will be y+1=-(x+10)
5 0
3 years ago
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